Reverse DNS + SPF and ISPConfig as my DNS Server

So I've read the how to on Godaddy and making ISPConfig the dns server.
Overall I am going to do this in hopes of better domain name settings so the Gmail and Hotmail no longer put me in the junk mail.
Gmail now works for the most part since I did a SPF setting via Godaddy.
And Yahoo works great because of that. (even now with my CiviMail program!)
But I want to make sure my reverse DNS is done right and later Domain Key as well.
This way I will have.
1. SPF done right
2. Reverse DNS done right
3. Domain Key working
For all domains I host.
So the question is, as I take the final plunge, Falko's tutorial seems to be using an older godaddy.
Using the new Godaddy I entered the ns1.rivervalleywebhosting.com and ns2.rivervalleywebhosting.com into their system so now I can use that for any of the clients I have via godaddy's dns registration.
So by doing the above I should be able to go into the godaddy account and set rivervalleywebhosting.com dns servers to ns1.rivervalleywebhosting.com and ns2.rivervalleywebhosting.com and then all the other accounts to the same so they get their Settings now from my ispconfig server(s)? Leaving no DNS Server settings in between the domain name and these ispconfig settings?
Just want to make sure.
Thanks
Alfred
Falko's very usefull tutorial can be seen athttp://www.howtoforge.com/ispconfig_dns_godaddy

So by doing the above I should be able to go into the godaddy account and set rivervalleywebhosting.com dns servers to ns1.rivervalleywebhosting.com and ns2.rivervalleywebhosting.com and then all the other accounts to the same so they get their Settings now from my ispconfig server(s)? Leaving no DNS Server settings in between the domain name and these ispconfig settings?

Click to expand...

Yes, thats sounds fine. Just make sure that the records for ns1.rivervalleywebhosting.com and ns2.rivervalleywebhosting.com are not removed.